#0B99C0
Closest named color: Blue NCS (#118AB2). oklch(63.5% 0.118 224.6), rgb(11, 153, 192).
Aa
Black text reads best on this color (6.33:1).
About this color
#0B99C0 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.118 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.044 away. Black text reads best on it, at 6.33:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 6.33:1 |
| White text | 3.31:1 |
Values
| HEX | #0B99C0 |
| RGB | rgb(11, 153, 192) |
| HSL | hsl(193, 89%, 40%) |
| OKLCH | oklch(63.5% 0.118 224.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #0B99C0 | 3.31:1 | AA large text | Lc -65.4 | Content text, not long reading |
| Black text on #0B99C0 | 6.33:1 | AA | Lc 44.1 | Non-text elements, placeholder text |
| #0B99C0 text on white | 3.31:1 | AA large text | Lc 60.0 | Large or bold text, headings |
| #0B99C0 text on black | 6.33:1 | AA | Lc -41.7 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DFEDF2
oklch(93.7% 0.016 221.1)
-
Step 200
200
#C4DEE9
oklch(88.5% 0.032 225.1)
-
Step 300
300
#99C9DD
oklch(80.9% 0.058 225.4)
-
Step 400
400
#59ADCC
oklch(70.7% 0.093 224.6)
-
Step 500
500 (this color)
#0B99C0
oklch(63.5% 0.118 224.6)
-
Step 600
600
#007FA1
oklch(55.5% 0.105 225)
-
Step 700
700
#006B88
oklch(49.1% 0.093 224.9)
-
Step 800
800
#005870
oklch(42.8% 0.081 224.4)
-
Step 900
900
#00495E
oklch(37.7% 0.071 225)
-
Step 950
950
#022B38
oklch(26.9% 0.049 224.5)
#0B99C0 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #8396C2 | 0.090 |
| Deuteranopia (no green cones) | #6E86C0 | 0.080 |
| Tritanopia (no blue cones) | #00A5A6 | 0.061 |
| Achromatopsia (no color) | #8D8D8D | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B99C0
#0B99C0
oklch(63.5% 0.118 224.6)
- #C5724B
#C5724B
oklch(63.6% 0.118 45.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #0B99C0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.044
- Water Blue #0E87CC ΔE 0.059
- Cool Blue #4984B8 ΔE 0.061
- Faded Blue #658CBB ΔE 0.061
- Dusty Blue #5A86AD ΔE 0.063
- Teal Blue #01889F ΔE 0.063
- Teal Green #0A9396 ΔE 0.063
- Steel Blue #4682B4 ΔE 0.065
Use #0B99C0 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.